PG-FP5 CHAPTER 4 PROGRAMMING GUI USAGE
R20UT0008EJ0400 Rev. 4.00 Page 94 of 240
Jul 15, 2010
<1> [Supply voltage] area
In this area, specify one (V
DD) or two (VDD and VDD2) voltage levels for target device programming, in accordance
with the target device type. Basically, V
DD/VDD2 voltages for target device programming should be supplied from
the target system. Supplying from the FP5 is possible, but the current flow is not large enough to operate the
whole target system (Refer to APPENDIX C ELECTRICAL SPECIFICATIONS OF TARGET INTERFACE).
Therefore, supply voltage via the FP5 only when a dedicated writing adapter such as an FA adapter is used.
Figure 4-65. [Supply voltage] Area
[Vdd[V]] box
The default V
DD level set in the PR5 file is displayed in volts (V). This level can be changed by input.
[Vdd2[V]] box
The default V
DD2 level set in the PR5 file is displayed in volts (V). If the target device specifications require two
types of V
DD for writing to flash memory, specify a lower voltage for VDD2 (e.g. VDD = 5.0 V, VDD2 = 3.3 V). This
level can also be changed by input.
[On Target] check box
Select this check box when supplying the V
DD/VDD2 voltages from the target system.
Caution Set the values of the V
DD/VDD2 voltages supplied from the target system for Vdd [V] and Vdd2 [V]
before selecting this check box. The target system may be damaged if proper values are not
set.
The V
DD pin power supply detection function varies depending on the setting of the [On Target] check box.
• When VDD is set to be supplied from FP5 ([On Target] check box: not selected)
If the target system VDD exceeds 0.2 V before VDD is supplied, the message “Target power detected! Check
Setup” will be displayed in the action log window.
• When V
DD is set to be supplied from the target system ([On Target] check box: selected)
If VDD is outside the range of ±5% of the VDD set value immediately before communication starts, the
message “No VDD applied or Voltage is out of range” will be displayed in the action log window.
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